Why am I still awake?

I promised myself I'd be in bed 30 minutes ago and yet here I am surfing the internet, scrolling through facebook, twitter, and youtube, and now writing this blog entry. I can't make my brain turn off. It's hard to unwind after a busy day. I guess I never found a routine for that. I'm thinking perhaps I should. By nature, I'm a night owl which doesn't bode well for the days when I must rise early (and attempt to shine!) to go teach eager students about the wonders of music.

I remember a phone call I was supposed to make, an email I was supposed to send, a visual I wanted to use in class tomorrow. It's all so unnerving and not conducive to relaxing. 

I need a routine. Any out there?